[CI] Format files after sync (#10828)

.github/workflows/sync-device-classes.yml

@@ -30,11 +30,16 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -e lib/home-assistant
+          pip install -r requirements_test.txt pre-commit
 
       - name: Sync
         run: |
           python ./script/sync-device_class.py
 
+      - name: Run pre-commit hooks
+        run: |
+          python script/run-in-env.py pre-commit run --all-files
+
       - name: Commit changes
         uses: peter-evans/create-pull-request@v7.0.8
         with: